Lembar kerja Biologi untuk ujian masuk keperawatan dengan jawaban

Which gas do plants take in from the air for photosynthesis?

1. AOxygen
2. BHydrogen
3. CCarbon dioxide
4. DNitrogen

Zat apa yang dihasilkan oleh fotosintesis?

1. AKarbon dioksida dan air
2. BAsam laktat dan ATP
3. CProtein dan nitrogen
4. DGlukosa dan oksigen

What does homozygous mean?

1. AHaving an extra chromosome
2. BHaving only one copy of a gene
3. CHaving two different alleles for a gene
4. DHaving two identical alleles for a gene

HIV is a retrovirus. What does its enzyme reverse transcriptase do?

1. AIt makes proteins from the virus's DNA
2. BIt makes RNA from the host's DNA
3. CIt breaks down the host's ribosomes
4. DIt makes DNA from the virus's RNA

A student's hypothesis is "Salt water slows the growth of bean seedlings." Which is a prediction based on it?

1. ABean seedlings need sunlight and water to grow well
2. BSalt water is made of sodium chloride and water
3. CSeedlings given salt water will grow less than those given plain water
4. DSeedlings given plain water will die within a week

Where does the Krebs (citric acid) cycle take place in a eukaryotic cell?

1. AOn the rough endoplasmic reticulum
2. BIn the cytoplasm
3. CIn the mitochondrial matrix
4. DIn the nucleus

The number of bacteria in a sample rises from 200 to 500. What is the percentage increase?

1. A300%
2. B250%
3. C150%
4. D60%

A plant is kept in the dark to use up its starch. One leaf is then sealed in a bag with a chemical that absorbs CO₂, and the plant is placed in light. Later, that leaf has no starch, but the other leaves do. What does this show?

1. ACarbon dioxide is needed for photosynthesis
2. BChlorophyll is needed for photosynthesis
3. COxygen is needed for photosynthesis
4. DLight is needed for photosynthesis